PT3600 Service Manual
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Level 4 indicates that the battery power is full, and level 1
indicates that the battery power is low.
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Squelch Adjust
Press the preprogrammed Squelch Adjust button to change the
current squelch level, and the squelch level after the change can be
heard.
4.1.2 VOX
VOX function enables you to use the radio without manual
operations. This function can only be set by the dealer, and you
have to be equipped with the specified earphones.
Before using VOX, you must set VOX gain level. Such setting
enables the radio to identify the voice volume. If the microphone
is too sensitive, the background noise will trigger the radio to
transmit. If the microphone is not sensitive enough, it cannot
receive your voice when you speak. Make sure to adjust the VOX
gain level to proper sensitivity.
4.1.3 Scan Function (this function can be disabled by the dealer)
If the scan function is enabled, you can press the
preprogrammed Scan button to start scanning and press it again to
stop scanning.
Explanations:
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After scan pauses, there are two ways to resume scanning:
1. Time operate: After pausing on an active channel, the radio will
resume scanning after a preprogrammed delay. The scan delay
time can be preset from 0.5 to 5 seconds.
2. Carrier operate: After pausing on an active channel, the radio
will resume scanning after a preprogrammed delay after the
channel becomes inactive. The scan delay time can be preset from
0.5 to 5 seconds.
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The revert channel during scan can be designated through PC
software. There are following options available:
1. Last Rx channel:
When pressing the PTT button during scanning, the radio will
transmit from the last channel that received a call.
2. Designated Tx channel:
When pressing the PTT button during scanning, the radio will
transmit from the designated TX Ch.
3. Priority channel (the priority channel must be set)
When pressing the PTT button during scanning, the radio will
transmit from the priority channel in the scan list.
4. Last Tx channel:
When pressing the PTT button during scanning, the radio will
transmit from the last channel that transmits signals.
5. Selected channel:
When pressing the PTT button during scanning, the radio will
transmit from the channel selected by the channel selector knob.
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You can choose to set one of the following 3 operations when
the channel is switched during scanning:
1. No operation.
2. Scan the current channel: The scanning will pause on the
current channel, and the pause time will be the Dropout Delay
Time. However, this channel will not be added to the scan list.
3. Exit scanning.
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Power-on scanning: If this function is enabled, the radio will
start scanning after the radio power is turned on.
4.1.4 CTCSS/DCS
CTCSS (Continuous Tone Control Squelch System) and DCS
(Digital Code Squelch) are sub-audible signals, which can realize
selective call and group call function. Only radios with the same
CTCSS/DCS can realize communication. CTCSS/DCS are preset
on channels of the radio.
4.1.5 TOT (Time-Out Timer) Function
The time-out-timer can prevent the user from continuously
talking and occupying a channel overlong, which will influence
the team communication.
If you continuously transmit longer than the preset TOT time,
the radio will make an alert tone and stop transmitting. To stop the
warning tone, release the PTT button.
4.1.6 TOT Pre-alert
The TOT Pre-Alert is the number of seconds the alert tone will
sound before the Time Out Timer times out. If the continuous
transmit time exceeds the preset limit, the radio will make alert
tone, which signifies that the communication is going to be
overtime.
4.1.7 TOT Rekey Time
A period in which the radio is forbidden to transmit after its
overtime activity. During the period, if the PTT button is pressed,
an alert tone will be sounded, and the transmission is forbidden.
4.1.8 TOT Reset Time
The time delay from releasing the PTT button to the resetting
of the timer is limited. The countdown will go on if the time after
releasing the PTT key is shorter than the reset time.
